CVE-2026-3358 | themeum Tutor LMS Plugin up to 3.9.7 on WordPress POST enroll_now/course_enrollment authorization

VDB-356955 · CVE-2026-3358 · GCVE-0-2026-3358 THEMEUM TUTOR LMS PLUGIN UP TO 3.9.7 ON WORDPRESS POST ENROLL_NOW/COURSE_ENROLLMENT AUTHORIZATION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 5.8 $0-$5k 0.21 Summaryinfo A vulnerability marked as critical has been reported in themeum Tutor LMS Plugin up to 3.9.7 on WordPress. Impacted is the function enroll_now/course_enrollment of the component POST Handler. Performing a manipulation results in authorization. This vulnerability is known as CVE-2026-3358. Remote exploitation of the attack is possible. No exploit is available. Detailsinfo A vulnerability was found in themeum Tutor LMS Plugin up to 3.9.7 on WordPress. It has been classified as critical. This affects the function enroll_now/course_enrollment of the component POST Handler. The manipulation with an unknown input leads to a authorization vulnerability. CWE is classifying the issue as CWE-862. The product does not perform an authorization check when an actor attempts to access a resource or perform an action. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is: The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to unauthorized private course enrollment in all versions up to, and including, 3.9.7. This is due to missing post_status validation in the `enroll_now()` and `course_enrollment()` functions. Both enrollment endpoints verify the nonce, user authentication, and whether the course is purchasable, but fail to check if the course has a `private` post_status. This makes it possible for authenticated attackers with Subscriber-level access or above to enroll in private courses by sending a crafted POST request with the target course ID. The enrollment record is created in the database and the private course title and enrollment status are exposed in the subscriber's dashboard, though WordPress core access control prevents the subscriber from viewing the actual course content (returns 404). Enrollment in private courses should be restricted to users with the `read_private_posts` capability. The weakness was published by Mohammad Amin Hajian. It is possible to read the advisory at wordfence.com. This vulnerability is uniquely identified as CVE-2026-3358 since 02/27/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/11/2026). There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Productinfo Type WordPress Plugin Vendor themeum Name Tutor LMS Plugin Version 3.9.0 3.9.1 3.9.2 3.9.3 3.9.4 3.9.5 3.9.6 3.9.7 CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 5.9 VulDB Meta Temp Score: 5.8 VulDB Base Score: 6.3 VulDB Temp Score: 6.1 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 5.4 CNA Vector (Wordfence): 🔒 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Authorization CWE: CWE-862 / CWE-863 / CWE-285 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: no mitigation known Status: 🔍 0-Day Time: 🔒 Timelineinfo 02/27/2026 CVE reserved 04/11/2026 +42 days Advisory disclosed 04/11/2026 +0 days VulDB entry created 04/11/2026 +0 days VulDB entry last update Sourcesinfo Advisory: wordfence.com Researcher: Mohammad Amin Hajian Status: Not defined CVE: CVE-2026-3358 (🔒) GCVE (CVE): GCVE-0-2026-3358 GCVE (VulDB): GCVE-100-356955 Entryinfo Created: 04/11/2026 04:10 Changes: 04/11/2026 04:10 (65) Complete: 🔍 Cache ID: 99:303:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸